Question

compare as potências = ou ≠

a)5²___ (-5)²
b)(-2)²___-2²
c)(-3)³___-3³
d)(-4)⁵___-4⁵

Answer 1

a) 5² = 25 ; (-5)² = 25
5² = (- 5)²

b)(-2)² = 4 ; -2² = -4
(- 2)² ≠ -2²

c)(-3)³ = -27 ; -3³ = -27
(- 3)³ = - 3³

d)(-4)^5 = -1024 ; -4^5 = -1024
(- 4)^5 = - 4^5